In this Tuesday, July 2, 2019, file photo, an Iranian woman works on her cell phone while spending an afternoon on steps outside of a shopping mall in northern Tehran, Iran. Before Iranians can check out the latest offerings on Twitter or YouTube, they must scroll through an array of icons on their smartphones, searching for the best workaround to bypass official censors. It’s a cat-and-mouse game that has become second nature in Iran, where the clerically-led government restricts access to popular social media sites and where U.S. sanctions create other barriers. (AP Photo/Vahid Salemi)